/*********************************************************************
 * Copyright (C) 2001 Andrew Khan
 * <p>
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * <p>
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * <p>
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 ***************************************************************************/

package jxl.write;

import jxl.Cell;
import jxl.format.CellFormat;
import jxl.write.biff.BlankRecord;

/**
 * A blank cell.  Despite not having any contents, it may contain
 * formatting information.  Such cells are typically used when creating
 * templates
 */
public class Blank extends BlankRecord implements WritableCell {
    /**
     * Creates a cell which, when added to the sheet, will be presented at the
     * specified column and row co-ordinates
     *
     * @param c the column
     * @param r the row
     */
    public Blank(int c, int r) {
        super(c, r);
    }

    /**
     * Creates a cell which, when added to the sheet, will be presented at the
     * specified column and row co-ordinates
     * in the manner specified by the CellFormat parameter
     *
     * @param c the column
     * @param r the row
     * @param st the cell format
     */
    public Blank(int c, int r, CellFormat st) {
        super(c, r, st);
    }

    /**
     * Constructor used internally by the application when making a writable
     * copy of a spreadsheet being read in
     *
     * @param lc the cell to copy
     */
    public Blank(Cell lc) {
        super(lc);
    }


    /**
     * Copy constructor used for deep copying
     *
     * @param col the column
     * @param row the row
     * @param b the balnk cell to copy
     */
    protected Blank(int col, int row, Blank b) {
        super(col, row, b);
    }

    /**
     * Implementation of the deep copy function
     *
     * @param col the column which the new cell will occupy
     * @param row the row which the new cell will occupy
     * @return a copy of this cell, which can then be added to the sheet
     */
    public WritableCell copyTo(int col, int row) {
        return new Blank(col, row, this);
    }
}

